
//
//  UINavigationStatusBarVC.m
//  UILbrary
//
//  Created by mac on 17/5/9.
//  Copyright © 2017年 mac. All rights reserved.
//

#import "UINavigationStatusBarVC.h"

@interface UINavigationStatusBarVC ()
@property (nonatomic, assign) NSInteger flag;
@end

@implementation UINavigationStatusBarVC

/*
 - [iOS上 关于状态栏的相关设置(UIStatusBar)](http://www.jianshu.com/p/9efcaeb26e03)
 - [preferredStatusBarStyle 方法不执行](http://www.jianshu.com/p/f9d7ede2c337)
 */
- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.flag = 0;
   
    UIView *statueView = [[UIView alloc] initWithFrame:CGRectMake(0, -20, [UIScreen mainScreen].bounds.size.width, 20)];
    statueView.backgroundColor = [UIColor greenColor];
    [self.navigationController.navigationBar addSubview:statueView];
    
  
    UIBarButtonItem *rightBarButton = [[UIBarButtonItem alloc] initWithTitle:@"更改状态栏" style:UIBarButtonItemStylePlain target:self action:@selector(changeStatueBar)];
    self.navigationItem.rightBarButtonItem = rightBarButton;

}

- (void)changeStatueBar{
    self.flag++;
    if(self.flag%2){
        self.tableView.backgroundColor = [UIColor purpleColor];
        self.navigationController.navigationBar.barStyle = UIBarStyleDefault;
    }else{
        //UIBarStyleBlack
        self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
        self.tableView.backgroundColor = [UIColor orangeColor];
    }
    
    
    [self setNeedsStatusBarAppearanceUpdate];
}


- (UIStatusBarStyle)preferredStatusBarStyle{

    //在有navigationControlle 时, 状态栏 状态 由 导航栏管理
    //所以 下面的方法根本就不会调用
    if(self.flag%2){
        return UIStatusBarStyleDefault;
    }
    return UIStatusBarStyleLightContent;
}



#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
#warning Incomplete implementation, return the number of sections
    return 0;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
#warning Incomplete implementation, return the number of rows
    return 0;
}

/*
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:<#@"reuseIdentifier"#> forIndexPath:indexPath];
    
    // Configure the cell...
    
    return cell;
}
*/

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the specified item to be editable.
    return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    } else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
*/

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end
